Min. Order:
1 Set
Price:
US$ 1
Place of origin:
China
Price Condition:
FOB Qingtao
Supply Ability:
500 sets/month
control valve and open the inlet valve, to make water meter and pipe fill with pressure, in that case, there is no leaking water any more .
2, Open the control valve, and open the control valve again to let air out, which can make the water meter turn and then the pointer point at the zero or other degrees. Close the cyclic type regulating valve and record the graduation .Then let the water out,
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